文献详情
Effects of dissolved oxygen on key enzyme activities during photosynthetic bacteria wastewater treatment
文献类型：期刊
通讯作者：Zhang, GM (reprint author), Renmin Univ China, Sch Environm & Nat Resource, Beijing 100872, Peoples R China.; Li, JZ (reprint author), Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Heilongjiang, Peoples R China.
期刊名称：PROCESS BIOCHEMISTRY影响因子和分区
年：2019
卷：76
页码：165-170
ISSN：1359-5113
关键词：Photosynthetic bacteria; Enzyme activity; Dissolved oxygen; Photophosphorylation; Oxidative phosphorylation
摘要：Photosynthetic bacteria (PSB) wastewater treatment is a novel method that can simultaneously achieve wastewater purification and recourse recovery. Oxygen conditions can significantly influence PSB metabolism and wastewater treatment; however, the roles of key enzymes in this process have been unclear. This study investigated the effects of different oxygen conditions on respiratory enzymes (hexokinase, HK; phosphofructokinase, PFK; and pyruvate kinase, PK) and the photosynthetic enzyme RuBisCO ...More
Photosynthetic bacteria (PSB) wastewater treatment is a novel method that can simultaneously achieve wastewater purification and recourse recovery. Oxygen conditions can significantly influence PSB metabolism and wastewater treatment; however, the roles of key enzymes in this process have been unclear. This study investigated the effects of different oxygen conditions on respiratory enzymes (hexokinase, HK; phosphofructokinase, PFK; and pyruvate kinase, PK) and the photosynthetic enzyme RuBisCO of PSB. The results showed that HK activity was almost the highest under anaerobic condition; PFK activity was the highest (311 nmol/min.g) and PK the most quickly reached its peak under aerobic condition; and RuBisCO activity was the highest (107 nmol/min g) under anaerobic condition. The above results illustrated that HK might simultaneously regulate PSB growth and COD degradation, and its main role might be PSB growth regulation. PFK and PK might function in COD degradation while RuBisCO might function in PSB growth. Further, oxygen was beneficial for COD degradation and detrimental for PSB growth. This study provides a theoretical basis for the development of PSB wastewater treatment. ...Hide

DOI：10.1016/j.procbio.2018.09.025
百度学术：Effects of dissolved oxygen on key enzyme activities during photosynthetic bacteria wastewater treatment
语言：外文
被引频次：3
人气指数：1
浏览次数：1
基金：Open Project of State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [ESK201801]
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